OK, I have not watched the clip yet, but just have taken a quick look at it; what I discovered is, despite the fact CMold is always very very close to the DVD color grading - sometimes 100% - that I think most of the time CMnew2 is better; still got to find out another shot with artifacts using the latter (apart the one posted before) but I'm quite sure I'll find few ones... another thing is that sometimes CMold is still better than CMnew2...

Let's see some frames together; first two without artifacts, the other three with them (NOTE: you could just go to the main comparison and switch images from there)

Frame 27784: here CMnew retain almost all the general color grading, while giving Agent Smith's face some pink, and here his shirt is white - as should be for an FBI agent, even in The Matrix... (^^,)

Frame 84000: the "infamous green beard" shot; even if in CMold Neo's face color is a bit flat, I continue to prefer it to the CMnew, which is still "too green for my taste" - even if, as I wrote before, these kind of shots are rare and almost all the time CMnew2 is way better than CMold

Frame 103953: CMnew2 has no trace of artifacts, and Neo's face is a lot better, while in CMold its color is very flat; in both the beard has equal traces of green, but not so offending as the previous frame

Frame 124008: again, CMnew2 has no artifacts, and Tank's face has better depth, while in CMold its color is quite flat

Frame 155508: some colors are lighter than CMold (and consequentely than DVD), but overall grading is right, and IMHO better - indeed water seems fresh here, while stale in CMold...

Conclusion: I think I will stick with the CMnew2 color grading for the whole movie, replacing the few shots where clearly CMold is superior (that frankly seems to sparsely appear), and eventual shots plagued with artifacts will be replaced by upscaled DVD or cropped HDTV; a test version should be encoded to support (or eventually confute) my theory.